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Fraction Calculator Tool

Enter two fractions and pick an operator to add, subtract, multiply, or divide. Results are shown as a simplified fraction, mixed number, and decimal, with step-by-step work. Mixed numbers and negatives supported.

Last updated: 2026/10/16 Calculator Feedback & bug reports
Enter Fractions
First fraction
Second fraction

* The whole-number box is only for mixed numbers (e.g. 2 1/3). For negatives, add a "-" to the whole or numerator.

Enter two fractions and an operator to see the result here.
Result
Simplified fraction
Mixed number
Decimal
Step-by-step
    "≈" indicates an approximate decimal (rounded to 8 places) for non-terminating values.

    How to Use

    1

    Enter two fractions

    Enter the numerator and denominator of each fraction. For a mixed number (e.g. 2 1/3), put the whole part in the left box. For negatives, add a "-" to the whole or numerator box.

    2

    Choose an operator

    Use the center buttons to add (+), subtract (−), multiply (×), or divide (÷). The result is calculated instantly as soon as you select one.

    3

    Review result and steps

    The result appears as a simplified fraction, mixed number, and decimal. You can also see the simplification steps and copy everything with the "Copy Result" button.

    About the Fraction Calculator

    A web tool that instantly performs the four basic operations (addition, subtraction, multiplication, division) on two fractions and shows the answer in three forms: a simplified fraction, a mixed number, and a decimal. It supports mixed numbers and negative values and displays the simplification steps, making it useful for checking work and for learning. All processing happens in your browser, and your numbers are never sent to any server.

    Features

    • All Four OperationsAdd, subtract, multiply, and divide. Switching the operator recalculates instantly.
    • Three Output FormatsSee the result as a simplified fraction, a mixed number, and a decimal at the same time.
    • Step-by-Step WorkSee how fractions are combined and simplified so you understand how the answer is reached.
    • Privacy ProtectedAll calculations run in your browser. Your input is never sent to any server.

    Use Cases

    • Checking math homework answers
    • Combining recipe amounts (e.g. 1/2 cup + 1/3 cup)
    • Adding measurements in DIY projects (e.g. inch fractions)
    • Simplifying fractions in probability and ratio problems
    • Converting between mixed numbers, improper fractions, and decimals

    FAQ

    How do I enter a mixed number (e.g. 2 1/3)?
    Type the whole part (2 in this example) in the "whole" box on the left of each fraction, then enter the numerator (1) and denominator (3). Leave the whole box empty for an ordinary fraction.
    Can it handle negative fractions?
    Yes. Add a "-" at the start of the whole or numerator box. For example, -2/3 is entered as "-2" in the numerator and "3" in the denominator. For a mixed number, a "-" in the whole box makes the entire fraction negative.
    What is the difference between a simplified fraction and a mixed number?
    A simplified fraction reduces the numerator and denominator to lowest terms (as an improper fraction). A mixed number is written as a whole number plus a proper fraction (e.g. 1 1/4). This tool shows both at once.
    Why is the decimal shown with "≈"?
    Non-terminating (repeating) decimals go on forever, so we show an approximation rounded to 8 decimal places marked with "≈". Terminating decimals are shown exactly with "=". Use the fraction form when exact precision is needed.
    Are my numbers sent to a server?
    No. All calculations happen entirely in your browser using JavaScript. Your input and results are never sent to or stored on any server, so you can use it with confidence.

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    Related Guides

    Fraction Basics: Simplifying, Common Denominators, and the Four Operations Learn fraction basics from scratch: how to simplify and find common denominators, addition and subtraction (common denominators), multiplication and division (reciprocals), converting mixed and improper fractions, fraction-decimal conversion, and tips for reducing answers to lowest terms.